rs1060502089

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4BP6BS2

The NM_003072.5(SMARCA4):​c.964G>A​(p.Ala322Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000969 in 1,445,430 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

2
5
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 4.84
Variant links:
Genes affected
SMARCA4 (HGNC:11100): (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a, member 4) The protein encoded by this gene is a member of the SWI/SNF family of proteins and is similar to the brahma protein of Drosophila. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein is part of the large ATP-dependent chromatin remodeling complex SNF/SWI, which is required for transcriptional activation of genes normally repressed by chromatin. In addition, this protein can bind BRCA1, as well as regulate the expression of the tumorigenic protein CD44. Mutations in this gene cause rhabdoid tumor predisposition syndrome type 2. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant in the SMARCA4 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 59 curated pathogenic missense variants (we use a threshold of 10). The gene has 56 curated benign missense variants. Gene score misZ: 6.8459 (above the threshold of 3.09). Trascript score misZ: 8.7957 (above the threshold of 3.09). GenCC associations: The gene is linked to uterine corpus sarcoma, Coffin-Siris syndrome 1, intellectual disability, autosomal dominant 16, rhabdoid tumor predisposition syndrome 2, familial rhabdoid tumor, hereditary nonpolyposis colon cancer, Coffin-Siris syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.3971241).
BP6
Variant 19-10987770-G-A is Benign according to our data. Variant chr19-10987770-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 408663.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 35 ENST00000344626.10 NP_003063.2 P51532-1A7E2E1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 35 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 35 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.964G>A p.Ala322Thr missense_variant Exon 7 of 35 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 34 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.964G>A p.Ala322Thr missense_variant Exon 6 of 34 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.964G>A p.Ala322Thr missense_variant Exon 7 of 35 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000643995.1 linkc.376G>A p.Ala126Thr missense_variant Exon 3 of 32 ENSP00000496004.1 A0A2R8YGG3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000143
AC:
3
AN:
209440
Hom.:
0
AF XY:
0.00000866
AC XY:
1
AN XY:
115518
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000313
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000352
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000113
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000969
AC:
14
AN:
1445430
Hom.:
0
Cov.:
34
AF XY:
0.00000697
AC XY:
5
AN XY:
717738
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000232
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000118
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000905
Gnomad4 OTH exome
AF:
0.0000336
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.000102
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Rhabdoid tumor predisposition syndrome 2 Uncertain:1
Jan 11, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 322 of the SMARCA4 protein (p.Ala322Thr). This variant is present in population databases (no rsID available, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with SMARCA4-related conditions. ClinVar contains an entry for this variant (Variation ID: 408663). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt SMARCA4 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided Uncertain:1
Mar 16, 2022
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant does not alter protein structure/function -

Hereditary cancer-predisposing syndrome Benign:1
Apr 24, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.0068
T
BayesDel_noAF
Benign
-0.14
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T;.;T;.;.;.;.;.;.;.;T;.;.;.;.;.;T;T
Eigen
Benign
0.082
Eigen_PC
Benign
0.088
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.92
.;D;.;.;.;.;D;.;.;.;D;.;D;D;D;D;D;D
M_CAP
Pathogenic
0.42
D
MetaRNN
Benign
0.40
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
-0.11
T
MutationAssessor
Benign
1.4
L;.;.;.;L;L;.;L;L;L;L;L;L;L;L;L;.;.
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.0
N;.;.;.;.;.;.;.;.;.;N;.;N;.;N;.;N;N
REVEL
Uncertain
0.40
Sift
Benign
0.22
T;.;.;.;.;.;.;.;.;.;T;.;T;.;T;.;T;T
Sift4G
Benign
0.44
T;.;.;.;.;.;.;.;.;.;T;.;T;T;T;T;T;T
Polyphen
0.98
D;.;D;.;.;.;.;.;.;.;D;.;.;.;.;.;.;D
Vest4
0.54
MutPred
0.17
Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);Gain of glycosylation at A322 (P = 0.002);
MVP
0.69
MPC
0.88
ClinPred
0.70
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.10
gMVP
0.12

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1060502089; hg19: chr19-11098446; COSMIC: COSV60813705; COSMIC: COSV60813705; API